Portland Harbour - Sandsfoot Castle (Beach) (Dorset) weather

Here are our top tips to keep you, your friends and family safe at the beach with links to Royal National Lifeboat Institution (RNLI) and Met Office advice.

Forecast days

Sunny intervals changing to light rain in the afternoon.
Beach safety today
Use caution in the sea. Waves can be bigger or stronger than you expect, strong rips likely, strong wind may blow you off course
  • • unsafe for novice surfers
  • • paddle boarding/kayaking not recommended at any level

Tide: Next high tide (3.7m) at

Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution
H Pollen

    8 day forecast for Portland Harbour - Sandsfoot Castle (Beach)

    Today (3 April 2025)
    Time
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Partly cloudy night Clear night Sunny day Sunny intervals Sunny intervals Sunny day Sunny day Sunny intervals Sunny intervals Cloudy Light rain Light rain Light rain Overcast Overcast Light rain Light rain Light rain Light rain
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    30%
    50%
    50%
    60%
    50%
    40%
    50%
    60%
    60%
    60%
    Temperature
    9°
    9°
    9°
    9°
    11°
    12°
    13°
    13°
    13°
    13°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    11°
    11°
    Feels like temperature (°C)
    6°
    6°
    6°
    6°
    8°
    9°
    10°
    10°
    10°
    9°
    9°
    9°
    9°
    9°
    9°
    9°
    9°
    9°
    10°
    Wind direction and speed
    NE
    14
    ENE
    13
    ENE
    13
    ENE
    13
    ENE
    15
    E
    17
    E
    18
    E
    20
    E
    20
    E
    20
    E
    20
    E
    19
    E
    18
    ESE
    17
    ESE
    16
    ESE
    13
    ESE
    12
    ESE
    10
    ESE
    9
    Wind gust (mph)
    27
    27
    27
    27
    28
    30
    32
    33
    33
    32
    31
    30
    28
    27
    23
    21
    20
    18
    15
    Visibility
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    Humidity
    76%
    76%
    77%
    75%
    74%
    66%
    63%
    62%
    63%
    65%
    68%
    72%
    74%
    79%
    84%
    83%
    85%
    88%
    91%
    UV - 1 1 1 1 2 3 4 3 3 2 1 1 1 1 - - - -
    Wind direction and speed
    14
    13
    13
    13
    15
    17
    19
    20
    20
    20
    20
    19
    18
    17
    16
    13
    11
    10
    8
    Height of waves offshore (m)
    0.4
    0.4
    0.5
    0.5
    0.5
    0.6
    0.7
    0.7
    0.7
    0.7
    0.7
    0.7
    0.7
    0.7
    0.6
    0.6
    0.6
    0.5
    0.4
    Period of waves offshore (s)
    6
    6
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    7
    7
    Direction of waves offshore
    Friday (4 April 2025)
    Time
    00:00
    01:00
    02:00
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Light rain Cloudy Cloudy Overcast Cloudy Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Clear night Clear night Clear night Clear night
    Chance of precipitation
    60%
    40%
    30%
    30%
    20%
    20%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    12°
    13°
    14°
    15°
    17°
    17°
    18°
    18°
    18°
    17°
    17°
    16°
    15°
    15°
    14°
    13°
    Feels like temperature (°C)
    10°
    10°
    10°
    10°
    9°
    9°
    9°
    9°
    10°
    11°
    12°
    13°
    13°
    14°
    14°
    14°
    13°
    13°
    13°
    13°
    12°
    12°
    11°
    10°
    Wind direction and speed (mph)
    E
    8
    E
    7
    ENE
    7
    ENE
    7
    ENE
    8
    NE
    9
    ENE
    9
    NE
    10
    NE
    10
    ENE
    11
    ENE
    13
    ENE
    14
    E
    15
    E
    16
    E
    17
    E
    18
    E
    18
    E
    17
    E
    16
    E
    15
    ENE
    15
    ENE
    15
    ENE
    16
    ENE
    17
    Wind gust (mph)
    13
    14
    14
    15
    16
    16
    17
    18
    20
    22
    24
    27
    29
    30
    29
    29
    29
    27
    25
    24
    24
    27
    28
    30
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    Humidity
    92%
    94%
    94%
    94%
    95%
    94%
    92%
    91%
    87%
    83%
    77%
    68%
    58%
    53%
    46%
    42%
    42%
    43%
    48%
    51%
    53%
    56%
    56%
    58%
    UV - - - - - - 1 1 1 1 2 3 4 4 3 3 2 1 1 1 - - - -
    Wind direction and speed (mph)
    8
    7
    7
    7
    8
    9
    9
    10
    10
    11
    13
    14
    15
    16
    17
    17
    18
    17
    16
    15
    14
    15
    16
    16
    Height of waves offshore (m)
    0.4
    0.4
    0.4
    0.4
    0.4
    0.4
    0.4
    0.4
    0.3
    0.3
    0.4
    0.4
    0.4
    0.5
    0.5
    0.6
    0.6
    0.6
    0.5
    0.5
    0.5
    0.4
    0.5
    0.5
    Period of waves offshore (s)
    6
    6
    4
    4
    5
    5
    5
    5
    4
    4
    4
    6
    2
    3
    3
    3
    3
    3
    3
    6
    8
    8
    8
    4
    Direction of waves offshore
    Saturday (5 April 2025)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Clear night Sunny day Sunny day Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    12°
    11°
    9°
    8°
    12°
    17°
    17°
    14°
    11°
    Feels like temperature (°C)
    9°
    8°
    6°
    4°
    9°
    13°
    14°
    11°
    8°
    Wind direction and speed (mph)
    ENE
    17
    NE
    17
    NE
    17
    NE
    18
    ENE
    17
    E
    17
    E
    15
    E
    13
    ENE
    14
    Wind gust (mph)
    29
    30
    30
    30
    30
    28
    24
    26
    28
    Visibility (description)
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    63%
    66%
    75%
    75%
    62%
    44%
    43%
    59%
    54%
    UV - - - 1 2 4 2 1 -
    Wind direction and speed (mph)
    17
    17
    17
    17
    17
    17
    15
    13
    15
    Height of waves offshore (m)
    0.5
    0.5
    0.5
    0.5
    0.6
    0.5
    0.4
    0.4
    0.5
    Period of waves offshore (s)
    4
    6
    7
    7
    7
    7
    8
    8
    5
    Direction of waves offshore
    Sunday (6 April 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    8°
    7°
    6°
    10°
    12°
    12°
    11°
    9°
    Feels like temperature (°C)
    5°
    3°
    2°
    7°
    9°
    9°
    8°
    6°
    Wind direction and speed (mph)
    ENE
    15
    ENE
    14
    ENE
    15
    ENE
    16
    ESE
    17
    ESE
    16
    E
    12
    ENE
    10
    Wind gust (mph)
    28
    26
    27
    26
    26
    23
    18
    21
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    62%
    73%
    77%
    57%
    51%
    54%
    55%
    63%
    UV - - 1 2 4 2 1 -
    Wind direction and speed (mph)
    15
    15
    15
    16
    18
    17
    12
    11
    Height of waves offshore (m)
    0.5
    0.5
    0.5
    0.5
    0.5
    0.6
    0.5
    0.5
    Period of waves offshore (s)
    8
    8
    8
    8
    6
    6
    6
    8
    Direction of waves offshore
    Monday (7 April 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    6°
    5°
    4°
    10°
    12°
    13°
    11°
    6°
    Feels like temperature (°C)
    3°
    2°
    1°
    8°
    10°
    11°
    10°
    5°
    Wind direction and speed (mph)
    ENE
    10
    NE
    9
    ENE
    8
    E
    9
    ESE
    10
    ESE
    9
    ESE
    6
    NE
    3
    Wind gust (mph)
    21
    18
    18
    17
    16
    14
    8
    5
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    63%
    71%
    76%
    61%
    53%
    52%
    62%
    84%
    UV - - 1 2 4 2 1 -
    Wind direction and speed (mph)
    10
    9
    8
    9
    10
    9
    6
    4
    Height of waves offshore (m)
    0.5
    0.5
    0.5
    0.5
    0.4
    0.4
    0.3
    0.3
    Period of waves offshore (s)
    8
    8
    8
    9
    9
    8
    8
    10
    Direction of waves offshore
    Tuesday (8 April 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    4°
    3°
    3°
    10°
    14°
    16°
    13°
    8°
    Feels like temperature (°C)
    3°
    1°
    2°
    9°
    13°
    14°
    12°
    6°
    Wind direction and speed (mph)
    ENE
    4
    NE
    4
    ENE
    4
    ENE
    6
    E
    8
    ESE
    8
    SE
    6
    ESE
    5
    Wind gust (mph)
    5
    6
    10
    14
    14
    12
    8
    7
    Visibility (description)
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    90%
    88%
    86%
    64%
    48%
    45%
    63%
    79%
    UV - - 1 2 4 2 1 -
    Wind direction and speed (mph)
    4
    4
    4
    6
    8
    8
    7
    5
    Height of waves offshore (m) – – – –
    0.5
    		– – –
    Period of waves offshore (s) – – – –
    8
    		– – –
    Direction of waves offshore
    –
    –
    –
    –
    –
    –
    Wednesday (9 April 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    6°
    5°
    4°
    11°
    15°
    16°
    14°
    9°
    Feels like temperature (°C)
    4°
    3°
    2°
    9°
    13°
    14°
    12°
    7°
    Wind direction and speed (mph)
    ENE
    5
    ENE
    5
    ENE
    5
    ENE
    8
    E
    9
    E
    10
    ESE
    8
    SE
    6
    Wind gust (mph)
    8
    8
    13
    16
    16
    15
    10
    6
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    79%
    84%
    86%
    67%
    53%
    50%
    58%
    71%
    UV - - 1 2 4 2 1 -
    Wind direction and speed (mph)
    5
    		– – – – – – –
    Height of waves offshore (m) – – – – – – – –
    Period of waves offshore (s) – – – – – – – –
    Direction of waves offshore
    –
    –
    –
    –
    –
    –
    –
    –
    Thursday (10 April 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day No weather symbol data No weather symbol data
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    		–
    Temperature (°C)
    6°
    5°
    5°
    11°
    16°
    17°
    15°
    9°
    Feels like temperature (°C)
    4°
    3°
    2°
    9°
    14°
    15°
    13°
    8°
    Wind direction and speed (mph)
    N
    6
    NNE
    6
    NNE
    6
    NNE
    7
    NE
    9
    SSE
    9
    W
    7
    WNW
    6
    Wind gust (mph)
    6
    7
    12
    17
    17
    13
    8
    		–
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    81%
    82%
    85%
    67%
    56%
    51%
    63%
    82%
    UV - - 1 2 4 2 1 -
    Wind direction and speed (mph) – – – – – – – –
    Height of waves offshore (m) – – – – – – – –
    Period of waves offshore (s) – – – – – – – –
    Direction of waves offshore
    –
    –
    –
    –
    –
    –
    –
    –

    Tide times

    Thursday 3 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 3 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 3 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 3 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 4 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 4 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 4 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 4 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 5 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 5 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 5 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 5 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 6 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 6 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 6 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 6 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 7 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 7 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 7 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 7 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 8 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 8 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 8 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 8 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 9 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 9 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 9 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 9 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 10 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 10 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 10 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 10 April

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times explained
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    Forecast for 05:00, Thu
    Updated 02:00 (UTC+1) on Thu 3 Apr 2025
    WARNING
    Flood alerts icon
    Flood alerts in force for England
    Flood alerts in force for England

    Environment Agency

    Updated:

    South West England weather forecast

    Headline:

    Cloudier on Thursday with a few showers possible. Rather windy.

    Today:

    Scattered showers soon arriving across Cornwall, Devon and Dorset, these perhaps spreading to remaining counties later. However, many places staying largely dry. Sunniest and warmest in eastern counties. Brisk easterly winds developing, and rather windy again in exposed coastal regions. Maximum temperature 19 °C.

    Tonight:

    A chance of further showers this evening, with more general rain possible, albeit not everywhere. Becoming mainly dry by the morning with coastal mist and hill fog in places. Milder. Minimum temperature 8 °C.

    Friday:

    Any mist and low cloud clearing to leave sunny spells. Increasingly sunny by the afternoon. Temperatures above average and feeling warm albeit cooler on coasts with brisk easterly winds again. Maximum temperature 22 °C.

    Outlook for Saturday to Monday:

    Mainly sunny over the weekend and into next week too. Temperatures generally lower than on Friday with chilly nights but feeling warm in the sunshine. Brisk easterly winds continuing.

    Updated:

    UK long range weather forecast

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